Patents by Inventor Yoshitaka Hashiguchi

Yoshitaka Hashiguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dental cement composition
    Patent number: 3962267
    Abstract: The dental cement composition comprises an aqueous resin composition prepared by the copolymerization of 3-butene-1,2,3-tricarboxylic acid and an .alpha.,.beta.-olefinic unsaturated monocarboxylic acid and, when desired, an additional polymerizable monomer as well as a metal oxide. The dental cement composition possesses compressive strength.
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: June 8, 1976
    Assignees: Shofu Dental Corporation, Teikoku Chemical Industry Co., Ltd.
    Inventors: Narishige Suzuki, Yoshihiro Morino, Yoshitaka Hashiguchi, Tunehiro Segawa